ap axial

What pathology can be demonstrated with the AP Axial Cervical Spine projection?

Pathology involving C3-C7, including Clay Shoveler's fracture, compression fractures, HNP (herniated nucleus pulposus), and degenerative disease. Easy Explanation: This projection evaluates the mid and lower cervical spine.

What kVp range is recommended for the AP Axial Cervical Spine projection?

70-85 kVp. Easy Explanation: Standard cervical spine technique range.

What patient positions may be used for the AP Axial Cervical Spine projection?

Supine or erect. Easy Explanation: The exam can be performed lying down or standing.

How should the patient's head be positioned for the AP Axial Cervical Spine projection?

The line from the lower margin of the upper incisors to the base of the skull (mastoid tips) should be perpendicular to the IR. Easy Explanation: Proper head positioning helps open the cervical disk spaces.

What CR angle is used for the AP Axial Cervical Spine projection?

15°-20° cephalad. Easy Explanation: The beam is angled toward the head.

Where should the CR enter for the AP Axial Cervical Spine projection?

At the upper margin of the thyroid cartilage, passing through C4. Easy Explanation: C4 is the centering point for this projection.

Why is cephalic angulation used for the AP Axial Cervical Spine projection?

To project the beam through the intervertebral disk spaces. Easy Explanation: The angle opens the disk spaces and reduces vertebral body overlap.

What are the respiration instructions for the AP Axial Cervical Spine projection?

Suspend respiration and do not swallow during exposure. Easy Explanation: Motion from breathing or swallowing can blur the image.

What anatomy should be demonstrated on the AP Axial Cervical Spine projection?

C3 through T2 vertebral bodies, intervertebral disk spaces, and pedicles. Easy Explanation: This view shows the mid-to-lower cervical spine.

How can proper positioning be confirmed on an AP Axial Cervical Spine projection?

Spinous processes and sternoclavicular joints are equidistant from the spinal column. Easy Explanation: Equal spacing means there is no rotation.

What CR angle is typically used for a patient with greater lordotic curvature?

20° cephalad. Easy Explanation: More curvature requires a greater angle.

What CR angle may be required for a patient with kyphotic curvature?

Greater than 20° cephalad. Easy Explanation: Kyphosis changes the alignment of the cervical spine, requiring more angulation.